A convergent total synthesis of mappicine ketone: A leading antiviral compound
作者:J.S. Yadav、Sanjita Sarkar、S. Chandrasekhar
DOI:10.1016/s0040-4020(99)00191-x
日期:1999.4
An efficient total synthesis of the naturally occuring mappicineketone 1 and mappicine 2 are described. The approach is based on the assembly of tricyclic amine 5 with pseudo acid chloride 20. A Friedlander condensation is utilized for the construction of the ABC skeleton and a periselective Diels-Alder approach is utilized for the preparation of the pseudo acid chloride.
Enantioselective Hydrogenation of Tetrasubstituted Olefins of Cyclic β-(Acylamino)acrylates
作者:Wenjun Tang、Shulin Wu、Xumu Zhang
DOI:10.1021/ja035777h
日期:2003.8.1
Hydrogenation of a series of cyclic beta-(acylamino)acrylates with tetrasubstituted olefins has been accomplished successfully with the use of Ru catalysts with chiral biaryl ligands such as C3-TunaPhos, and up to over 99% ee's have been achieved. This methodology provides an efficient catalytic method for the synthesis of both cis and trans chiral cyclic beta-amino acid derivatives.
2-AMINO PYRIMIDINE COMPOUNDS AS POTENT HSP-90 INHIBITORS
申请人:Kung Pei-Pei
公开号:US20100041681A1
公开(公告)日:2010-02-18
The present invention is directed to compounds of formula (I),
or pharmaceutically acceptable salts thereof, their synthesis, and their use as HSP-90 inhibitors.
β-Ketoester dianions as regiospecific enolate equivalents for N-substituted pyrrolidin-3-ones
作者:Melvyn Giles、Michael S. Hadley、Timothy Gallagher
DOI:10.1039/c39900001047
日期:——
Double deprotonation of β-ketoester (6) gives dianion (7) which serves as a synthetic equivalent of the regiospecific ketone enolate (3), providing a synthetic entry to 2-substituted pyrrolidin-3-ones (9) and (10).